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# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/c++/c++.gni")
import("//build/config/sanitizers/sanitizers.gni")
import("//build/toolchain/toolchain.gni")
# Used by libc++ and libc++abi.
config("config") {
defines = [ "LIBCXX_BUILDING_LIBCXXABI" ]
if (libcpp_is_static) {
defines += [
# This resets the visibility to default only for the various
# flavors of operator new and operator delete. These symbols
# are weak and get overriden by Chromium-provided ones, but if
# these symbols had hidden visibility, this would make the
# Chromium symbols hidden too because elf visibility rules
# require that linkers use the least visible form when merging,
# and if this is hidden, then when we merge it with tcmalloc's
# operator new, hidden visibility would win. However, tcmalloc
# needs a visible operator new to also override operator new
# references from system libraries.
# TODO(lld): Ask lld for a --force-public-visibility flag or
# similar to that overrides the default elf merging rules, and
# make tcmalloc's gn config pass that to all its dependencies,
# then remove this override here.
"_LIBCPP_OVERRIDABLE_FUNC_VIS=__attribute__((__visibility__(\"default\")))",
]
}
cflags = [
"-fPIC",
"-fstrict-aliasing",
]
}
if (libcpp_is_static) {
link_target_type = "source_set"
} else {
link_target_type = "shared_library"
}
target(link_target_type, "libc++") {
sources = [
"trunk/src/algorithm.cpp",
"trunk/src/any.cpp",
"trunk/src/bind.cpp",
"trunk/src/chrono.cpp",
"trunk/src/condition_variable.cpp",
"trunk/src/debug.cpp",
"trunk/src/exception.cpp",
"trunk/src/functional.cpp",
"trunk/src/future.cpp",
"trunk/src/hash.cpp",
"trunk/src/ios.cpp",
"trunk/src/iostream.cpp",
"trunk/src/locale.cpp",
"trunk/src/memory.cpp",
"trunk/src/mutex.cpp",
"trunk/src/new.cpp",
"trunk/src/optional.cpp",
"trunk/src/random.cpp",
"trunk/src/regex.cpp",
"trunk/src/shared_mutex.cpp",
"trunk/src/stdexcept.cpp",
"trunk/src/string.cpp",
"trunk/src/strstream.cpp",
"trunk/src/system_error.cpp",
"trunk/src/thread.cpp",
"trunk/src/typeinfo.cpp",
"trunk/src/utility.cpp",
"trunk/src/valarray.cpp",
"trunk/src/variant.cpp",
]
configs -= [
"//build/config/compiler:chromium_code",
"//build/config/compiler:no_rtti",
"//build/config/gcc:no_exceptions",
]
configs += [
":config",
"//build/config/compiler:no_chromium_code",
"//build/config/compiler:rtti",
"//build/config/sanitizers:sanitizer_options_link_helper",
]
defines = [ "_LIBCPP_BUILDING_LIBRARY" ]
deps = [
"//buildtools/third_party/libc++abi",
]
}
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